Players are remembered for the championships they won—and the records they hold.

Adrian Peterson and Vikings teammate Jared Allen have their sights set on benchmarks that if not likely, are certainly attainable. For Peterson, who came heartbreakingly close to surpassing Eric Dickerson’s single-season rushing record last season, has his eye now on Emmitt Smith’s NFL career rushing record.

Allen, 31, is aiming for Michael Strahan’s single-season sack record of 22.5. In 2011, Allen recorded 22 sacks. His half-sack deficit was every bit as crushing as Peterson coming up eight yards short of the 2,105-yard mark.

A huge factor in reaching their respective goals is being—and staying—healthy. Allen underwent multiple surgical procedures on his shoulder and knee in late January. He feels better now than he has in years, and that’s half the battle.

He says Strahan’s record, set in 2001, is “absolutely reachable.”

“I don’t buy into ’30 and you’re old,’” Allen told USA Today. “I feel it’s just like anything—it’s geared towards how you take care of your body, how you mentally prepare for the game and obviously having a coach that manages you well, too. But I do feel like I’m back there. I feel that’s where I’m at mentally, physically and I feel like we have a team that even make it better.”

Peterson, meanwhile, has 8,849 career yards. He projects it will take 79 games—in Week 16 of the 2017 season—for him to beat Smith’s record of 18,355 yards. He’d have to average 120.3 yards a game.

Peterson, 28, needs another 9,506 yards to pass Smith. Smith, according to the Elias Sports Bureau, gained 8,195 yards after age 28. That means Peterson would need an outrageous run to come close to the man every running back is chasing.

Allen would need another 83 sacks in his career to match Bruce Smith’s record of 200. He is currently 16th on the list. He’ll climb the charts, but may not reach the top overall. But the single-season record is within his grasp—especially now that he’s not dogged by aches and pains that limited his ability.

“I believe he’s on the verge of having another big year,” Vikings coach Leslie Frazier told USA Today. “And he had a good year last year. Twelve sacks is nothing to sneeze at. But because he’s Jared Allen, sometimes it gets washed under the rug.”

But this year, he’s going for it: “Two hundred is tough. But 23 is reachable.”